Alert archive / Arizona / Areal Flood Advisories in 2013

Areal Flood Advisory 21, NWS Tucson, AZ

July 12, 2013Cochise County, Arizona

NWS Tucson, AZ issued this areal flood advisory at Jul 12, 2013, 4:35 AM MST for Cochise County, Arizona. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jul 12, 2013, 4:35 AM MST (11:35 UTC)
Expired: Jul 12, 2013, 7:30 AM MST
In force: 3 hr
Issued by: NWS Tucson, AZ
Area: Storm-based polygon

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 83 km from the middle of the area, began a volume at 11:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Santa Teresa, NM (KEPZ), launched 00:00Z, 11.6 hours before the alert went out and 288 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 47 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 3090 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tucson, AZ wrote its last area forecast discussion before this areal flood advisory went out at Jul 12, 2:45 AM MST, 1 hour 50 minutes earlier.

Area forecast discussion, Jul 12, 2:45 AM MST, 1 hour 50 minutes before

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The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 12, 1:40 AM MST	Areal Flood Advisory	TWC	Cochise	110 min
Jul 12, 2:34 AM MST	Areal Flood Advisory	TWC	Cochise	116 min
Jul 12, 11:12 AM MST	Special Weather Statement	TWC	Pinal	48 min
Jul 12, 11:34 AM MST	Special Weather Statement	TWC	Pinal	41 min
Jul 12, 11:48 AM MST	Dust Storm Warning	TWC	Pinal	102 min
Jul 12, 12:41 PM MST	Areal Flood Advisory	TWC	Pinal	3 hr

Nearby

Areal Flood Advisories in Arizona, 2013 Every areal flood advisory in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.